Bottom line! Fast-food chain places ad campaign on girls' backsides

It's an unusual way to spread the word about a new 'bunless chicken sandwich'.

But Kentucky Fried Chicken bosses are emblazoning the logo of their new Double Down sandwich across the backsides - or buns as they are known in the U.S. - of young female college students.

Sales of the bread-free burger sagging across America, so KFC has been reaching out for creative advertising ideas.

Sitting pretty: College students are being paid $500 to hand out KFC coupons while wearing tracksuit bottoms emblazoned with 'Double Down' on their 'buns'

So the chicken chain is paying attractive girls $500 to pass out
coupons while sporting tight-fitting tracksuit bottoms with 'Double
Down' written on the backside.

The promotion for the 540-calorie chicken-bacon-and-cheese concoction kicked off at Louisville’s Spalding University yesterday.

KFC plans to introduce the promotion on at least three more campuses and is using Facebook to find willing posteriors.

From a quick glance at the menu, the bunless chicken sandwich might sound like the ideal meal for slimmers.

Kentucky Fried Chicken hoped to appealing to its carb-conscious customers with the launch its first bread-free burger earlier this year.

No bread: The promotion for the 540-calorie chicken-bacon-and-cheese concoction kicked off at Louisville's Spalding University yesterday

But dieters may wish to look a little more closely as the traditional bun
has actually been replaced with two thick slabs of fried chicken.

The KFC 'Double Down' contains two pieces of bacon and two melted slices of cheese, slathered
in mayonnaise and sandwiched between two slices of meat.

Nutritionists were horrified by the launch of the fatty dish in
a country where two-thirds of the population is overweight or obese.

KFC insists the sandwich contains 540 calories - but it has
been reported that it actually racks up a much higher figure of 1,228,
or about half of a man's recommended daily intake.

On top of this, fast food fans will consume 1,380 milligrams
of salt and 32 grams of fat, including 10 grams of cholesterol-laden
saturated fat, with each Double Down.

Kelly Brownell, director of Yale University's Rudd Centre for Food
Policy and Obesity, described it as a 'salt bomb'. She added: 'That's a
better part of a day's sodium in one meal.'

The Double Down costs the equivalent of £3.30, but is also on offer as part
of a £4.60 meal deal with potato wedges and a fizzy drink - taking the
toll to 1,000 calories, 45 grams of fat and 2,120 milligrams of sodium.